a(n) = sqrt(A167657(n)).

Terms

a(0) =0a(1) =1a(2) =2a(3) =3a(4) =16a(5) =5a(6) =36a(7) =7a(8) =64a(9) =729a(10) =10a(11) =1331a(12) =144a(13) =13a(14) =196a(15) =3375a(16) =4096a(17) =17a(18) =5832a(19) =361a(20) =20a(21) =9261a(22) =484a(23) =12167a(24) =331776a(25) =625a(26) =26a(27) =729a(28) =28a(29) =841